Variable Temperature Behaviour of the Hybrid Double Perovskite MA2KBiCl6

Fengxia Wei; Yue Wu; Shijing Sun; Zeyu Deng; Li Tian Chew; Baisong Cheng; Cheng Cheh Tan; Timothy J. White; Anthony K. Cheetham

doi:10.3390/molecules28010174

Variable Temperature Behaviour of the Hybrid Double Perovskite MA₂KBiCl₆

Fengxia Wei^*, Yue Wu, Shijing Sun, Zeyu Deng, Li Tian Chew, Baisong Cheng, Cheng Cheh Tan, Timothy J. White, Anthony K. Cheetham

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Perovskite-related materials show very promising properties in many fields. Pb-free perovskites are particularly interesting, because of the toxicity of Pb. In this study, hybrid double perovskite MA₂KBiCl₆ (MA = methylammonium cation) was found to have interesting variable temperature behaviours. Both variable temperature single crystal X-ray diffraction, synchrotron powder diffraction, and Raman spectroscopy were conducted to reveal a rhombohedral to cubic phase transition at around 330 K and an order to disorder transition for inorganic cage below 210 K.

Original language	English
Article number	174
Journal	Molecules
Volume	28
Issue number	1
DOIs	https://doi.org/10.3390/molecules28010174
Publication status	Published - Jan 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022 by the authors.

ASJC Scopus Subject Areas

Analytical Chemistry
Chemistry (miscellaneous)
Molecular Medicine
Pharmaceutical Science
Drug Discovery
Physical and Theoretical Chemistry
Organic Chemistry

Keywords

hybrid halide perovskite
Pb-free
phase transition

Access to Document

10.3390/molecules28010174

Cite this

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title = "Variable Temperature Behaviour of the Hybrid Double Perovskite MA2KBiCl6",

abstract = "Perovskite-related materials show very promising properties in many fields. Pb-free perovskites are particularly interesting, because of the toxicity of Pb. In this study, hybrid double perovskite MA2KBiCl6 (MA = methylammonium cation) was found to have interesting variable temperature behaviours. Both variable temperature single crystal X-ray diffraction, synchrotron powder diffraction, and Raman spectroscopy were conducted to reveal a rhombohedral to cubic phase transition at around 330 K and an order to disorder transition for inorganic cage below 210 K.",

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AU - Wei, Fengxia

AU - Wu, Yue

AU - Sun, Shijing

AU - Deng, Zeyu

AU - Chew, Li Tian

AU - Cheng, Baisong

AU - Tan, Cheng Cheh

AU - White, Timothy J.

AU - Cheetham, Anthony K.

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N2 - Perovskite-related materials show very promising properties in many fields. Pb-free perovskites are particularly interesting, because of the toxicity of Pb. In this study, hybrid double perovskite MA2KBiCl6 (MA = methylammonium cation) was found to have interesting variable temperature behaviours. Both variable temperature single crystal X-ray diffraction, synchrotron powder diffraction, and Raman spectroscopy were conducted to reveal a rhombohedral to cubic phase transition at around 330 K and an order to disorder transition for inorganic cage below 210 K.

AB - Perovskite-related materials show very promising properties in many fields. Pb-free perovskites are particularly interesting, because of the toxicity of Pb. In this study, hybrid double perovskite MA2KBiCl6 (MA = methylammonium cation) was found to have interesting variable temperature behaviours. Both variable temperature single crystal X-ray diffraction, synchrotron powder diffraction, and Raman spectroscopy were conducted to reveal a rhombohedral to cubic phase transition at around 330 K and an order to disorder transition for inorganic cage below 210 K.

KW - hybrid halide perovskite

KW - Pb-free

KW - phase transition

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